A Communication Method for Realizing Synchronous Online Analysis During Fault Recording Data Transmission

Abstract

The invention relates to a communication method for implementing synchronous online analysis in fault recording data transmission. The communication method includes that a recording networking system master station is informed after a fault recorder is started to generate fault recording data; the recording networking system master station transmits a fault recording data summoning command to the fault recorder; the fault recorder compresses and packages fault recording data and transmits the compressed and packaged fault recorder data to the recording networking system master station in a subframe manner; the recording networking system master station receives the fault recording data, performs unpacking analysis and online display and has the fault recording data cached. By the application of the communication method, data network bandwidth can be less occupied, and transmission efficiency is higher; the fault recording data are transmitted step by step and subjected to the online analysis and display at the same time, better realtime performance is achieved, failure causes can be determined more rapidly, and the communication method is suitable for large-scale promotion and application.

Description

technical field [0001] The invention relates to the field of data transmission, in particular to the field of fault recording data transmission, and specifically refers to a communication method for realizing synchronous online analysis during fault recording data transmission. Background technique [0002] The main function of the power grid fault recorder networked system is to collect and manage fault recorders in each plant in the power grid at the time of grid fault, including fault record data, action reports, protection settings and other information. As well as the synthesis, statistics, calculation and analysis of these data and signals. The network fault recording system is mainly composed of the main station located in the network, province, city, and regional dispatch center and several fault recorders located in substations and power plants through the power system communication network. [0003] Among the above-mentioned types of data, the fault recording data...

AI Technical Summary

Problems solved by technology

Since the devices that generate and store fault recording data are all operating in remote substations or power plants, with the increase in the sampling frequency and number of acquisition channels of fault recorders, the recording data is getting larger and larger, but due to the limitation of communication transmission network And the constraints of the application layer protocol, so it will take more time to transmit large wave recording data, and after the power grid failure, it is required to quickly determine the cause of the fault, so there are requirements for slower transmission time and fast analysis of wave recording data Must be contradictory

In order to solve this problem, when the power system fails, the method of calling "simple wave recording" is usually used, that is, only the first three cycles of wave recording after the power grid fault starts are transmitted. Since the brief wave recording data is incomplete, according to this information The judged fault may be inaccurate

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